Nut Rust 

Slang for having a pair of very dirty balls. Can be from excessive sweating or dirty activities, such as rolling around in the sand.

Frank:oh its been a long day, i could use a real good blowjob, and maybe some ball-sucking.

Jane:No way,get a god-damn shower, cause you got nut rust.

Nut Rust by Milkman2313 October 12, 2008

Nut Rustle 

The horrible week after you shave your pubes when there is nothing but intense, excruciating prickly pain.

Friend 1: hey man how's your week been?
Friend 2: Not so good, the nut rustle is hard to get through but I think I might be okay.

Nut Rustle by ZStambs21 January 20, 2017

rusty nut 

derived from the term "not the sharpest tool in the shed" well a "rusty nut" is not even in the shed its that random thing you found in your yard that you keep just in case you find what it goes to
used to describe someone dull, dumb, slow, or a person dragging an entire team or group of people down

sam is therusty nut of the school. her test scores lost all of our federal funding

rusty nut by n8andmcdonaldscrew August 4, 2009

rusty nut 

used to say that someone is laggig in their work or falling behind dragging the "whole team" down

derived from the term "not the sharpest tool in the shed" well a "rusty nut" is not even in the shed its that random thing you found in your yard that you keep just in case you find what it goes to

Kristen is the rusty nut tonight man. she isnt getting her damn dishes done

rusty nut by N8andmcdcrew August 4, 2009

Rusty nut 

Rusty nut: (noun)1. Primarily sexual in reference, a rusty nut is the condition of a scrotum that has been made red either due to slapping or some other form of trauma to the scrotal region.
2. Alternatively, rusty nut is a derogatory term referring to a man with red hair.

- (1)The ol’ lady got a little rough and really gave me a rusty nut.
- (2) Rusty Nuts O’Flannigan drinks Guinness by the gallon.

Rusty nut by TheYard July 17, 2018

The Rusty Lug Nut

The act of twisting just ONE nut into a chicks balloon knot, then pulling it out with a little doodoo on it and proceeding to drag the poo smear across her forehead.

Bro last night Rowen gave some nasty lot lizard The Rusty Lug Nut, bitch had a 6 inch shit smear across her forehead.

The Rusty Lug Nut by Bronoun69 October 6, 2023

Rusty Nut 

The consequence of sexual intercourse with a rusty exhaust pipe.

Tim got a rusty nut when he backed up on his '96 Chevy.

Rusty Nut by ilrein April 3, 2011